Modular breathing apparatus



FIG. 1 is a front right perspective view of the modular breathing apparatus;

FIG. 2 is a left rear perspective view of the apparatus of FIG. 1;

FIG. 3 is a right side elevated view of the apparatus of FIG. 1;

FIG. 4 is a left side elevation view of the apparatus of FIG. 1;

FIG. 5 is a top plan view of the apparatus of FIG. 1;

FIG. 6 is an exploded perspective view of the apparatus of FIG. 1 with the humidifier partially removed; and,

FIG. 7 is a front perspective view of the breathing apparatus without the humidifier. 

The ornamental design for a modular breathing apparatus, as shown. 